<template>
    <div>
        <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/Home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>权限管理</el-breadcrumb-item>
        <el-breadcrumb-item>角色列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片区域 -->
        <el-card>
            <el-row>
                <el-col>
                    <el-button type="primary">添加角色</el-button>
                </el-col>
            </el-row>
           <el-table :data="rolelist" border stripe>
               <el-table-column type="expand">
                    <!-- eslint-disable-next-line -->
                   <template slot-scope="scope">
                       <el-row :class="['bdbottom',i1 === 0 ? 'bdtop': ''  , 'vcenter']" v-for="(item1,i1) in scope.row.children" :key="item1.id" >
                           <el-col :span="5">
                               <el-tag closable @close='removeRightById(scope.row,item1.id)'>{{item1.authName}}</el-tag>
                               <i class="el-icon-caret-right"></i>
                           </el-col>
                           <el-col :span="19">
                               <el-row :class="[i2 === 0 ? '' : 'bdtop','vcenter']" v-for="(item2,i2) in item1.children" :key="item2.id">
                                   <el-col :span="6" >
                                       <el-tag type="success" closable @close='removeRightById(scope.row,item2.id)'>{{item2.authName}}</el-tag>
                                       <i class="el-icon-caret-right"></i>
                                   </el-col>
                                   <el-col :span="18" >
                                       <el-tag type="warning" v-for="(item3) in item2.children" :key="item3.id" closable @close='removeRightById(scope.row,item3.id)'>{{item3.authName}}</el-tag>
                                   </el-col>
                               </el-row>
                           </el-col>
                       </el-row>
                   </template>
               </el-table-column>
                <el-table-column type="index"></el-table-column>
                <el-table-column prop="roleName" label="角色名称"></el-table-column>
                <el-table-column prop="roleDesc" label="角色描述"></el-table-column>
                <el-table-column label="操作" width="300px">
                    <!-- eslint-disable-next-line -->
                    <template slot-scope="scope">
                        <el-button size="mini" type="primary" icon="el-icon-edit">编辑</el-button>
                        <el-button size="mini" type="danger" icon="el-icon-delete">删除</el-button>
                        <el-button size="mini" type="warning" icon="el-icon-setting" @click="showSetRightDialog(scope.row)">分配权限</el-button>
                    </template>
                </el-table-column>
           </el-table>
             
        </el-card>
        <!-- 分配权限的对话框 -->
        <el-dialog title="分配权限" :visible.sync="setRightDialogVisible" width="50%" @close = "setRightDialogClosed">
        <el-tree :data="rightslist" :props="treeProps" show-checkbox node-key='id' default-expand-all :default-checked-keys ="defkeys" ref="treeRef"></el-tree>
        <span slot="footer" class="dialog-footer">
            <el-button @click="setRightDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="allotRights">确 定</el-button>
        </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    data (){
        return{
            rolelist: [],
            setRightDialogVisible: false,
            rightslist : [],
            roleId:'',
            treeProps : {
                label : 'authName',
                children :'children'
                },
                defkeys : [],
            items: [
                    { type: '', label: '编辑' },
                    { type: 'danger', label: '删除' },
                    { type: 'warning', label: '分配权限' }
                ]
        }
      
    },
    created(){
        this.getRolesList()
    },
    methods:{
        async getRolesList(){
           const {data : res} = await this.$http.get('roles')
           if(res.meta.status !== 200) {
               return this.$message.error('获取角色列表失败')
           }
           this.rolelist = res.data
           console.log(this.rolelist)
        },
        async removeRightById(role,rightId){
         const confirmResult=  await  this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)

        if(confirmResult !== 'confirm'){
            return this.$message.info('取消了删除！')
        }
       const{data:res} =  await this.$http.delete(`roles/${role.id}/rights/${rightId}`)
       if(res.meta.status !== 200){
           return this.$message.error('删除失败！')
        }    
        role.children = res.data
        },
        async showSetRightDialog(role){
            this.roleId = role.id
        const{data : res} =  await this.$http.get('rights/tree')
        this.setRightDialogVisible = true
        if(res.meta.status !== 200) {
            return this.$message.error('获取权限失败')
        }
        this.rightslist = res.data
        console.log(this.rightslist)
        this.getLeafKeys(role,this.defkeys)
        this.setRightDialogVisible = true

        },
        getLeafKeys(node,arr){
            if(!node.children){
                return arr.push(node.id)
            }
            node.children.forEach(item =>this.getLeafKeys(item,arr));
        },
        setRightDialogClosed(){
            this.defkeys = []
        },
        async allotRights(){
            const keys = [
            ...this.$refs.treeRef.getCheckedKeys(),
            ...this.$refs.treeRef.getHalfCheckedKeys()
            ]

            const idStr = keys.join(',')
            const{data : res}  = await this.$http.post(`roles/${this.roleId}/rights`,{rids :idStr})
            if(res.meta.status !== 200){
                return this.$message.error('分配权限失败！')
            }
            this.$message.success('分配权限成功！')
            this.getRolesList()
            this.setRightDialogVisible = false
        }
    }
}
</script>

<style lang="less" scoped>
    .bdtop{
        border-top: 1px solid #eee;
    }
    .bdbottom{
        border-bottom: 1px solid #eee;
    }
    .el-tag {
        margin: 7px;
    }
    .vcenter {
        display : flex;
        align-items: center
    }
</style>

